Backed by Alfonso Cuarón and Guillermo del Toro (who also shared a hand in penning the screenplay), Robert Zemeckis returns with The Witches, a cartoony riff on the nightmare-inducing 1990 Nicolas Roeg film and the Roald Dahl novel of the same name. While you’d expect more from the talent involved, Zemeckis and company manage to pull together a somewhat enjoyable rendition of Dahl’s story that nods to its superior predecessor while attempting to break new ground.